int main (int argc, char **argv)
{
int collectd_argc = 0;
char *collectd = NULL;
char **collectd_argv = NULL;
struct sigaction sa;
int i = 0;
/* parse command line options */
while (42) {
int c = getopt (argc, argv, "hc:P:");
if (-1 == c)
break;
switch (c) {
case 'c':
collectd = optarg;
break;
case 'P':
pidfile = optarg;
break;
case 'h':
default:
exit_usage (argv[0]);
}
}
for (i = optind; i < argc; ++i)
if (0 == strcmp (argv[i], "-f"))
break;
/* i < argc => -f already present */
collectd_argc = 1 + argc - optind + ((i < argc) ? 0 : 1);
collectd_argv = (char **)calloc (collectd_argc + 1, sizeof (char *));
if (NULL == collectd_argv) {
fprintf (stderr, "Out of memory.");
return 3;
}
collectd_argv[0] = (NULL == collectd) ? "collectd" : collectd;
if (i == argc)
collectd_argv[collectd_argc - 1] = "-f";
for (i = optind; i < argc; ++i)
collectd_argv[i - optind + 1] = argv[i];
collectd_argv[collectd_argc] = NULL;
openlog ("collectdmon", LOG_CONS | LOG_PID, LOG_DAEMON);
if (-1 == daemonize ())
return 1;
sa.sa_handler = sig_int_term_handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
if (0 != sigaction (SIGINT, &sa, NULL)) {
syslog (LOG_ERR, "Error: sigaction() failed: %s", strerror (errno));
return 1;
}
if (0 != sigaction (SIGTERM, &sa, NULL)) {
syslog (LOG_ERR, "Error: sigaction() failed: %s", strerror (errno));
return 1;
}
sa.sa_handler = sig_hup_handler;
if (0 != sigaction (SIGHUP, &sa, NULL)) {
syslog (LOG_ERR, "Error: sigaction() failed: %s", strerror (errno));
return 1;
}
while (0 == loop) {
int status = 0;
if (0 != collectd_start (collectd_argv)) {
syslog (LOG_ERR, "Error: failed to start collectd.");
break;
}
assert (0 < collectd_pid);
while ((collectd_pid != waitpid (collectd_pid, &status, 0))
&& (EINTR == errno))
if ((0 != loop) || (0 != restart))
collectd_stop ();
collectd_pid = 0;
log_status (status);
check_respawn ();
if (0 != restart) {
syslog (LOG_INFO, "Info: restarting collectd");
restart = 0;
}
else if (0 == loop)
syslog (LOG_WARNING, "Warning: restarting collectd");
}
syslog (LOG_INFO, "Info: shutting down collectdmon");
pidfile_delete ();
closelog ();
free (collectd_argv);
return 0;
} /* main */
static void handle_killed_daemon(active_db_h * daemon, process_h * process)
{
assert(daemon);
assert(daemon->name);
assert(daemon->current_state);
assert(daemon->current_state->name);
assert(process);
int rcode;
D_("handle_killed_start(%s): initial status: \"%s\".\n",
daemon->name, daemon->current_state->name);
/*
* Youst run if we checks for PID FILE
*/
if (daemon->current_state == &DAEMON_WAIT_FOR_PID_FILE &&
is(&FORKS, daemon)) {
try_get_pid(daemon);
return;
}
/* This service are gonna respawn, no need to set it stopped */
if (check_respawn(daemon)) {
/* It is gonna respawn, free this process and forget */
initng_process_db_free(process);
return;
}
/* Set local rcode, and free process */
rcode = process->r_code;
initng_process_db_free(process);
/*
* Make sure r_code don't signal error (can be override by UP_ON_FAILURE.
*/
/* If daemon stoped by a SEGFAULT (SIGSEGV==11) this is always bad */
if (WTERMSIG(rcode) == 11) {
initng_common_mark_service(daemon, &DAEMON_FAIL_START_SIGNAL);
return;
}
/* if exit with sucess */
if (WEXITSTATUS(rcode) == 0) {
/* OK! now daemon is STOPPED! */
initng_common_mark_service(daemon, &DAEMON_STOPPED);
return;
}
/* else exitstatus is abouw 0 */
if (is(&DAEMON_FAIL_OK, daemon)) {
/* It might be ok anyway */
initng_common_mark_service(daemon, &DAEMON_STOPPED);
return;
}
/* This is also ok */
if (daemon->current_state->is == IS_STOPPING &&
is(&DAEMON_STOPS_BADLY, daemon)) {
/* It might be ok anyway */
initng_common_mark_service(daemon, &DAEMON_STOPPED);
return;
}
/* else fail by RCODE failure */
initng_common_mark_service(daemon, &DAEMON_FAIL_START_RCODE);
}
